CVE-2022-41722: Path traversal on Windows in path/filepath

A path traversal vulnerability exists in filepath.Clean on Windows. On Windows, the filepath.Clean function could transform an invalid path such as "a/../c:/b" into the valid path "c:\b". This transformation of a relative (if invalid) path into an absolute path could enable a directory traversal attack. After fix, the filepath.Clean function transforms this path into the relative (but still invalid) path ".\c:\b".

Golang Go could allow a remote attacker to traverse directories on the system, caused by a flaw in the filepath.Clean function. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

— IBM

Path traversal on Windows in path/filepath

— Microsoft